Water is collected, not made to disappear
Rainfall is directed toward integrated gutters or drainage channels and then to a discharge route. That downstream route needs to be planned at the site.
Outdoor Living & Architecture · Specific answer
Do Louvre Roofs Stop Rain?
Closed louvres can provide useful overhead rain protection when the system and drainage are correctly configured. Wind-driven rain, side openings and site conditions still matter.
Planning guidance — final supplied configuration remains project-specific.
Outdoor is different from indoor
Wind-driven rain can enter from sides or around interfaces. Avoid treating an operable louvre structure as a sealed building envelope unless the whole enclosure has been designed and verified for that purpose.
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